Answer:
9.67 g
Explanation:
176 cm³ / 18.2 g/cm³ = 9.6703296703...
I rounded to the nearest hundredth
Answer:
We will have zero bonds
Explanation:
In this case, we have to start with the <u>structure of 4,5-diethyloctane</u>. This name ends with the <u>suffix "ane"</u> therefore we have an <u>alkane</u>. All the alkanes are made with <u>single bonds</u> between carbons and <u>single bonds</u> between carbon and hydrogen.
The molecule will have a <u>carbon chain of eight carbons</u> and we will have 2 <u>branches</u>, one ethyl on carbon 4 and another ethyl on carbon 5. (see figure 1)
Before Rutherford's Planetary Model, the widely accepted model was J.J Thomson's Plum-Pudding Model. In Thomson's model, an atom is a positive sphere containing protons initially. Then, the electrons are embedded in the atom to neutralize the positive charges making the atom neutral. Rutherford experimented Thomson's findings. In his gold foil experiment, he would bombard the atom with a stream of alpha particles. If Thomson was correct, the light should absorb most of the light, may diffract a little, but not reflect back to the source. However, the opposite happened. Then, Rutherford disproved Thomson's model and proposed that there is a nucleus at the center that cause the reflection of light.
Answer:
Al₂(CO₃)₃ → Al₂O₃ + 3CO₂ Decomposition
Explanation:
This reaction is a decomposition type, we make two compounds from one. This is the case where a single substance breaks down, producing two or more different substances. In orden to balance it we need to count.
We have 2 Al in both sides so at least it is balanced, but we have 3 C in reactant side from the carbonate and we may need 3 C in product side.
In conclussion we have 2 Al and 3 C on both sides. In reactant side we count 9 O so in product side we have 6 O from the Co₂ and 3 O from the aluminum oxide. Finally the reaction is balanced